Steam in a piston-cylinder assembly undergoes a polytropic process, with n = 2, from an initial state where V = 4.38600 ft3, p1 = 400 lbf/in2, and u = 1322.4 Btu/lb to a final state where u2 = 1036.0 Btu/lb and v2 = 3.393 ft/lb. The mass of the steam is 2.5 lb. Changes in kinetic and potential energy can be neglected. Determine the change in volume, in ft3, the energy transfer by work, in Btu, and the energy transfer by heat, in Btu. Determine the change in volume, in ft. AV= i ft3